RE: ATM First Ronchi test

[Andrew Melville <a.melville@mailbox.gu.edu.au>]

Marty wrote>

<snippage of much helpful advice to cut to the chase>

> I would polish with CeO until polished out, and then
>figure with rouge.

Can I change to CeO without rebuilding the lap?
It might be good to change to CeO as there are a few small scratches that probably wont go away with rouge.

I guess I would have to rebuild the lap to change back to rouge?
Not too bad anyway as the lap is getting thin (about 2mm left on the edge squares).

Andrew

 There are two kinds of polishing compound, 
that which is pink
and that which stains everything.